[33]: The difficulty of assigning any definitional value to a "primordial germ" is due to the vagueness of idea attached to it in the popular mind, as well as to the diversified theories and speculations of the scientists concerning the origin of life. We can only define it as a "vital unit," as the chemist defines his smallest conceivable quantity--his "primary least"--of an element, as a "chemical unit." [34]: Let two comrades be shot at the same instant in battle, the one through the heart, and the other through the arm, shattering it badly. What is there to prevent the surgeon from taking a piece of bone out of the arm of the man shot through the heart and instantly killed, and using it to make good the arm of the man still living? Apparently nothing but that the dead man's bone will not knit. He may not have been dead five minutes, and Professor Beale's bioplasts might still be at work spinning matter and weaving tissue for the integrity of the displaced bone. Why will it not knit? Simply because the vital principle that differentiates matter is gone--can no longer act. If the integrity of the bone depended on the action of the molecules, and not on the vital principle, there is no reason why this experiment should not be a success. For the molecules are all there, and their action will not be disturbed for hours after the death of the man shot through the heart. [35]: It is safe to adhere to the Leibnitzian axiom, _Natura non agit saltatim_. [36]: One of the most cultured classes of Christian believers in our day, holds that "all life is from the Lord;" that "He is the fountain, and we only the streams thence." And this, they claim, is true of all life. To "take away our breath," therefore, is to cut off this stream perpetually flowing from its invisible source--the fountain of all Life. When scientific methods substitute for a first cause a mere resultant effect, all primary principles disappear in their intermediates.